Samsung Galaxy Note 3: Quad-core 2.3GHz Qualcomm Snapdragon 800 processor, 3GB of RAM
Samsung Galaxy S5: Quad-core 2.5GHz Qualcomm Snapdragon 801 processor, 2GB of RAM
In terms of processing power, it's likely that the Galaxy S5 and Galaxy Note 3 will be fairly evenly matched. The Galaxy S5 has a nippier Qualcomm Snapdragon 801 processor, a chip that was unveiled at this year's MWC and offers improved performance compared to the previous Qualcomm 800 processor found in the Galaxy Note 3.
However, the Samsung Galaxy Note 3 has 3GB of RAM compared to the Galaxy S5's 2GB.
Samsung Galaxy Note 3: Android 4.3 Jelly Bean, custom user interface
Samsung Galaxy S5: Android 4.4 Kitkat, custom user interface
The Galaxy S5 arrives running the latest version of Google's mobile operating system, Android 4.4 Kitkat. As a year-old handset, the Galaxy Note 3 comes with Google's Android 4.3 Jelly Bean release, although it has - this week, in fact - been upgraded to Android 4.4 Kitkat.
The Galaxy S5 also sports a newer version of Samsung's custom user interface. This clearly has taken tips from Apple's iOS 7 mobile operating system, boasting a more colourful, stripped-down design that removes a lot of the textures seen on the previous version, with the user interface on the Galaxy S4 often seeming overbearing. As well as making the Galaxy S5 easier to customise than its predecessor, this should also ensure that it will receive software updates faster.
While the Galaxy S5 boasts a lot of the same software features as the Galaxy Note 3, including S Voice and Smart Screen eye tracking, it also introduces some new ones. These include S Health 3.0, which pairs with the heart rate monitor to offer features such as exercise tracking and a pedometer, and Samsung's Magazine feature, a personalised news feed accessible by swiping left on the handset's homescreen.
However, thanks to its included stylus, the Galaxy Note 3 might manage to win over business people and those who like to doodle on the go, supporting split-screen multitasking and touting S Pen support apps such as S Note.
Next: Camera, battery and storage.